5V, 64 Kbit (8 Kb X 8) TIMEKEEPER SRAM

The M48T08M48T08YM48T18 TIMEKEEPER RAM is an 8K x 8 non-volatile static RAM and real
time Clock which is pin and functional compatible with the DS1643. The monolithic chip is
available in two special packages to provide a highly integrated battery backed-up memory
and Real Time Clock solution. By STMicroelectronics